Actuating mechanism for pressing machines



July 10, 1928. 1,676,866

` vA. D. MAURY ACTUATING MECHANISM FOR PRESSING MACHINES Filed rch 3.6,1926 2 She ATT0RNEY5 Patented July 10, 1928..

, :UNITED `s'rnrns PATENT OFFICE.

ALFRED D. MAURY, Vor ILIoN, NEW YORK, A ssIG'NonnY MEsNE ASSIGNMENTS, or

ACTUATING MEoHANIsM non rnEssING MACHINES.

Application led March 16, 1926. Serial No. 95,123..

This invention has for its object 'al par. ticularly simple actuatingand motion trans.

mitting mechanism, which mechanism is particularly adapted for presslngmachmes. The invention consists 1n the novel features and in thecombinations and construc tions lieieinafteiset forth and claimed.

1n ldescribing this invention reference is had to the accompanying`drawings in which like characters represent corresponding parts in allthe views.

Figure 1 is a side elevation lof a garment or laundry pressing machineembodying my invention. V

Figure 2 is a detail view of themehcanism when shown in a startingposition.

Figure 3 is a. view similar to when in an intermediate position. l

Figure 4 .is a fragmentary plan View partly in section of the manualmeans for controlling the inlet of air into the cylinder of the airmotor. v

Figure 5 is a fragmentary vertical sectional view of the controllingvalve.

Figure 6 is the fragmentary sectional view of the releasing valve.

The machine here illustrated is the conventional type of garment orlaundry pressing machine and comprises a frame 1, a buck 2 supported bythe frame, a press head 3 movable toward and from the buck 2 and carriedby the forward arm of a yoke'or lever 4 pivoted at -5 rbetween its endsto' a standard 6 rising from the frame and forming an upward extensionofthe; single rear leg 7 of the frame. This leg is hollow or in the formof a channel.

A counter-balancing weight 8 is mounted 0n therear arm of the yoke lever4, and also Figure 2 the -actuating mechanism is connected toarm of alever pivoted between its ends at 1'3 to the frameo or the rear leg 8,the link 9 and the lever 12 or the upper or rear arm thereof forming thetoggle. The recipro* cally-movable actuator is a piston rod 14 having .apiston 15 movable in a cylinder 16,

at its upper end This other linkis one the piston rod being connected tothe lever 12 or the lower or front arm thereof by a link 17 which ispivotally connected at 18 to the lower end of the piston rod 14 and at19 to the rear arm` of the lever 12.

As here shown thelink 17 is pivoted tota cross head or slide 20connected to the piston rod 14 and movable along aI ixed'guide 21.

The movement ofthe piston rod 14 .of cross head 2O is parallelV to thetoggle, when v straightened, formed bythe link 9 and the lever 12. Theguide -21 is Vformedintegral with the rear leg 7 and is double so that.the cross head engages the guide 21 at its opposite ends and the link-17 is between the y TheJmotive fluid for the cylinders is preferably airand is controlled by mechanism similar to that shown in Davis A'PatentNo.

1,609,273, November 30, 1926. The air is supplied from any suitablesource through a pipe 25, the flow of air being controlled to thecylinder through the intake pipe 26 by a control valve, Figure 5. Thisvalve includes a casing 27 having a seat 28 therein and a spring pressedhea-d 29 normally engaged with the seat 28. The valve 29 and seat 28 arelocated between the feed pipe 25 and the pipe 26. The valve head 29 ismounted on a stem 29a extending through casing 2T to thc outside thereofand operable by a lever 3l, this lever being manually operable to movethe valve head 29 oil' its seat 2S and thus permit the air to flow tothe yupper end of the cylinder to actuate the piston.

The. air also exhausts back through this pipe 26 through the valvecasing, and the stem 29d is provided with an exhaust valve head whichcoacts with the seat 33 when the intake valve 29 is open and is oil'from said seat when the intake valve is closed. Thus when the intakevalve 29 is closed the valve 29 and hold it open.

air isfree toy exhaust back through the pipe 26 through the'valvechamber 27, past the valve head 32 and out the outlet 34.

The intake valve 29 is held open after it has been manually operated toopen position and the exhaust valve 32 held closed by back pressureoperating from the cylinder ,through a pipe 35 leading from the cylinderinto a diaphragm `chamber 36 so that the back air pressure acts on vadiaphragm 37 in the chamber 36 which in turn acts' on a sliding stem 38coacting with an arm 39 of the lever 31 in such a manner as to cause thelatter to press on the stem of the intake This pipe 35 communicates withthe valve chamber l40 mounted on the side of the cylinder 16 near theupper end". thereof, the valve member within the chamber having anoperating part 41 outside the chamber which part is actuated by areciprocating .rod 42.

The valve in the casing 40 is normally closed. WhenA the pistonI reachesa certain point in its out stroke, an arni 43 on the piston rod engagesthe shoulder 44 on the rod 42 and thus. pulls on the rod to open thevalve in the casing 4() permitting the pressure to pass backthrough thepipe 35 into the diaphragm chamber 36 and thus hol-d the intake valve 29open. Whileothe intake valve is held open the pressure is held applied.To release the pressure another manually operated normally closedexhaust valve 45 is employed. The release valve 45 lis located in avalve casing 46, which is conl nected by a pipe 47 to the diaphragmchamber 37.

This exhaust valve 45 is spring pressed to its closed position by aspring 48 and is operated manually by a handle 49. When it is g openedthe air 1s exhausted from the diaphragm chamber 36 permitting the springto close the intake valve 29 and open the exhaust valve 32 so that theair will exhaust out of the cylinder.

Preferably the intake valve 29 or the lever -31 thereof is operated by atwo-hand operating mechanism here shown as levers 51 connectedto thelever 31 through suitable methanism requiring' that both levers beactuated to transmit any movement at all to the levers 31. As hereillustrated the levers 51 are pivoted at 52 between their ends. One ofthe levers is vconnected by a link 53 to a toggle consisting of links54, 55 and the other lever 51 is connected by a link 56 to a toggleconsisting of the link 54 andthe link 57. This link 57 is connected tothe lever 31 by a link 58.4 Both toggles which consists of the links 54,55 and 54, 57 must be straightened before any effective moveof av frameincluding a hollow rear leg, a

buck carried by the frame, a press head movable toward and from thebuck, a yoke lever pivoted between its ends to the frame and carryingthe head at its front end, actuating means including a lever pivotedbetween its ends to the frame, a link pivoted at its-upper end to therear arm of the yoke lever and at its lower end to one arm of said leverand forming a toggle, a cylinder lo-y cated in the hollow rear leg, apiston movable in the cylinder, the rear leg being formed with a guideand the piston rod having a cross-head movable along the guide, thegui-de extending in a general direction parallel `to the toggle when thetoggle. is straightened and alink`pivoted 'to said pistonl rod to theother arm of the lever.

2. A pressing machine mechanism comprising links pivoted together, oneof the links being a lever pivoted between its ends, one of the arms ofthe lever being pivoted to the other link forming therewith a toggle, areciprocating t'uator having a cross-head thereon, .a link connectingthe actuator and the other arm of the lever and a guidel for thecross-head, the guide being normally arranged at an angle to the leverand the lever being movable into a -position in which it extcnds in ageneral direction parallel to the gui e.

3. A pressing machine mechanism comprising links pivoted together andconstituting a toggle, one of the links being one arm' of a leverpivoted between its ends, a Y reclprocatmg actuating part movable in apath substantially parallel to the toggle when lin straightenedposition, a third link connecting the reciprocating part and the otherarm of the lever and a guide for holding the reciprocating part in itspath of vmovement during the rocking of the lever,

